Garmin Vivosmart 3 is a slim activity tracker that tells you your fitness age

The new Garmin Vivosmart 3 fitness tracker monitors your oxygen levels during workouts, and then crunches the data to give you a fitness age.

Garmin says that “based on their VO2 max, fitness age gives users an easy way to understand if they are making progress in their fitness. The lower their fitness age is compared to their real age, the better. Through hard work and exercise, users can increase their VO2 max and reduce their fitness age.”

Despite losing the HR part of the name for its latest release, Garmin has included a heart rate monitor in the Vivosmart 3 that will keep an eye on your beats per minute, 24 hours a day.

'Repping the reps

Garmin has also included a new strength training feature that means it can track how many reps you’re doing within your weight workouts.

The Vivosmart 3 also has you covered when it comes to step tracking, floors climbed, calories burnt and hours of sleep.

According to Garmin the Vivosmart 3 battery will last up to five days on a single charge, but we’ll put that through to the test in our full review soon. It’s waterproof, so you can take it swimming, comes in black and purple, and it can show you phone notifications for calls, emails, texts, calendar reminders and more.

You can buy the Garmin Vivosmart 3 in the UK and US from today for £129.99, $139.99, but there’s no word on an Australian release date or a price.